Everything changes all the time

The global warming is changing the world very quickly. The pollution is more and more important and it's a catastroph for the ecosystem. This climate change affect many ecosystems, including tundra, mangroves, and coral reefs. It is expected that most ecosystems will be affected by higher atmospheric CO2 levels, combined with higher global temperatures. Overall, it is expected that climate change will result in the extinction of many species and reduced diversity of ecosystems.